Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Support\Responsable" not found in C:\xampp\htdocs\ducev\vendor\spatie\laravel-sitemap\src\Sitemap.php:13 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ducev\vendor\spatie\laravel-sitemap\src\Sitemap.php on line 13